Carbureter.



J. M. DAYTON. GARBURETER. APPLICATION FILED JAILG. 1910.

1,016,252. Patented Feb. 6, 1912.

WITNESSES V @gmw a INVENTOR A tlomeys COLUMBIA PLANDGRAPH co., WASHINGTON, D. c.

UNITED STATES PATENT OFFICE.

JAMES M. DAYTON, OF-TORRINGTON, CONNECTICUT, ASSIGNOR TO EXCELSIOR NEEDLE COMPANY, OF TOR-RINGTON, CONNECTICUT, A CORPORATION OF CONNECTICUT.

CARBURETER.

Specification of Letters Patent.

Patented Feb. 6, 1912.

Original application filed November 2, 1909, Serial No. 525,942. Divided and this application filed January 6, 1910. Serial No. 536,689.

To all whom it may concern:

Be it known that I, JAMES M. DAYTON, a citizen of the United States, residing at 'lorrington, in the county of Litchfield, State of Connecticut, have invented certain new and useful Improvements in Carburetors, of which the following is a description, reference being had to the accompanying drawing and to the figures of reference marked thereon.

The invention relates to new and useful improvements in carbureters, and more especially to the construction and arrangement of the float chamber.

An object of the invention is to provide a float chamber which may be readily opened so that access may be had to the float for flooding the chamber or for other purposes if desired.

A further object of the invention is to provide means for readily determining the proper level of the fuel in the float chamber.

These and other objects will in part be obvious and will in part be hereinafter more fully described.

This application is a division of my application Serial No. 525,942, filed November 2nd, 1909.

In the drawings which show by way of illustration one embodiment of the invention; Figure 1 is a sectional view through the carbureter with my improvements applied thereto. Fig. 2 is a section 011 the line 22 of Fig. 1. Fig. 3 is a detail showing the cover and the central sleeve in side elevation with the cover broken away in section to show the opening through the same.

My improved carburetor comprises a main casing l which as herein shown is cast into a single piece, having a main air inlet 2, an auxiliary air inlet 8, and an opening 4 leading to the motor, which is controlled by a throttle valve of the usual construction.

The main casing 1 between the air inlet 2 and the auxiliary air inlet 3 is deflected downwardly forming a U-shaped passage 5 through which the air is drawn by the suction of the engine.

At the lower portion of the U-shaped passage 5, is an upwardly projecting nozzle 6 which is controlled by a needle valve 7. The casing 1 below the nozzle 6, has a downwardly projecting sleeve 8 formed with a shoulder 9. Said casing is also provided as herein shown with a laterally projecting disk 10 which forms the cover for the float chamber. 7

A bowl 11, which is preferably of spun brass, has a central opening which fits 011 the sleeve 8, so that said bowl rests against the flange 9 and the upper edge thereof engages the disk or cover 10 so that the chamber is tightly closed.

A nut 12 threaded on the sleeve 8, serves to hold the bowl in proper position. A float 13 is arranged within the float chamber formed by the bowl, and is so constructed asto surround the sleeve 8. A valve 14: is connectedv to a cross bar carried by the float 13, and serves to control the flow of the oil from the main reservoir to the float chamber.

The valve 1 1 has a stem which is threaded into the cross bar carried by the float and said cross bar is provided with a projecting boss, which is split in order to bind the stem of the valve and hold the same in adjusted positions.

The cover 10 of the float chamber is provided with a threaded opening 15, which receives a screw cap 16. A leather gasket 17 serves to form a tight joint between the cap and the cover. A vent opening 18 extends through the cap 16.

When it is desired to examine the float chamber, it is not necessary to take the chamber apart, but by removing the cap 16, access may be rapidly had to the float chamber, and the chamber flooded by depressing of the float with the finger, if desired.

It is essential to determine with certainty the normal height of the liquid in the float chamber, and to ascertain, if from any cause, the fluid level is above or below the normal height. In order that this may be readily determined, I have provided a gage pin 19 which as herein shown is secured to the main casing of the carbureter, at a point as near the supply nozzle of the carburetor as possible. Said gage pin projects into the float chamber and may be made of celluloid if desired, so that it can be readily seen when the screw cap 16 is removed.

By placing the gage pin as near as possible to the fuel nozzle, the proper level of the liquid fuel may be determined although the carbureter by reason of its attachment to the machine, may be tilted out of normal position.

It is obvious that instead of using a gage pin, other gaging devices may be used, the essential feature being some means for readily determining the height of the liquid fuel, which means is located within the float chamber, and as close as possible to the supply nozzle.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1, A carbureter including in combination, a metal casing forming a fuel chamber, a float operated valt e for controlling the supply of fuel to said chamber, a fuel nozzle, gaging means located within said casing adjacent said fuel nozzle for determining the proper level of fuel therein, and means whereby the gaging device may be rendered visible from the outside of. the casing.

2. A carburetor including in combination, a metal casing forming a fuel chamber, consisting of a bowl and a cover for said bowl,

a fuel nozzle located centrally of said casing, afloat operated valve for controlling the supply of fuel to said chamber, gaging means located in said casing adjacent said nozzle, and means whereby the gaging device may be rendered visible from the outside of the float chamber.

3. A carburetor including in combination, a metal casing forming a fuel chamber, consisting of a bowl and a cover for said bowl,

a fuel nozzle located centrally of said casing, a float operated valve for controlling the supply of fuel to said chamber, a gage pin located in said casing adjacent the nozzle for determining the normal height of the JAMES M. DAYTON. lVitnesses D. HILDRETH, CHAS. M. I-IIBBARD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G. 

